The following table shows the Price-to-Earnings ratio for a stereo equipment manufacturing company between 1998 and 2002. The annual percentage growth rate of the P/E ratios is also calculated and given below. 
Calculate the geometric mean growth rate increase or decrease over the period from 1998 to 2002.
Definitions:
Poverty Income Threshold
The minimum level of income deemed necessary to achieve an adequate standard of living in a given country, used to identify individuals or families in poverty.
Median Income
The midpoint income level at which half of the population earns more and the other half earns less, used as a standard measure of economic well-being.
Female-Headed Families
Households led by a female, often focusing on those with dependents for studies on social and economic issues.
Lorenz Curve
A graphical representation used in economics to show the distribution of income or wealth within a society, illustrating inequality.
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